Help..what is 2(4\3 πr^²)?

1 Answer
May 2, 2018

8/3pir^2, 8.37r^2, or 8.38r^2, depending on if you use a value for pi (either 3.14 or pi on a calculator)

Explanation:

2(4/3 pir^2) First let's distribute the 2.
8/3pir^2

From here, there are 3 options:

  1. Leave the pi as pi, and the above value is your answer.
  2. Use 3.14 as pi, which will produce 628/75r^2, or roughly 8.37r^2.
  3. Use a calculator for pi, which will produce roughly 8.38r^2.